URLLoaderMockFactory: clear MemoryCache in unregisterAllURLs

third_party/WebKit/Source/platform/testing/weburl_loader_mock_factory_impl.cc

Index: third_party/WebKit/Source/platform/testing/weburl_loader_mock_factory_impl.cc
diff --git a/third_party/WebKit/Source/platform/testing/weburl_loader_mock_factory_impl.cc b/third_party/WebKit/Source/platform/testing/weburl_loader_mock_factory_impl.cc
index a5704c040299ed50db47d2af331fee0e83923945..044af33b241fce059085b4742cf77bd098d9ac30 100644
--- a/third_party/WebKit/Source/platform/testing/weburl_loader_mock_factory_impl.cc
+++ b/third_party/WebKit/Source/platform/testing/weburl_loader_mock_factory_impl.cc
@@ -8,6 +8,7 @@
 
 #include "base/files/file_util.h"
 #include "base/run_loop.h"
+#include "platform/loader/fetch/MemoryCache.h"
 #include "platform/testing/TestingPlatformSupport.h"
 #include "platform/testing/UnitTestHelpers.h"
 #include "platform/testing/weburl_loader_mock.h"
@@ -75,6 +76,9 @@ void WebURLLoaderMockFactoryImpl::unregisterURL(const blink::WebURL& url) {
 void WebURLLoaderMockFactoryImpl::unregisterAllURLs() {
   url_to_response_info_.clear();
   url_to_error_info_.clear();
+  MemoryCache* cache = memoryCache();
+  if (cache)
+    cache->evictResources();
 }
 
 void WebURLLoaderMockFactoryImpl::serveAsynchronousRequests() {